/// <summary>
/// 获取Tile的范围四至
/// </summary>
/// <returns></returns>
public LngLatBbox GetBbox()
{
var cellSize = new CellSize();
var cell = cellSize.GetCellSizeInDegree(Level);
var L = new LngLatSegments(this.Corner.Lng.Code >> (32 - Level) << (32 - Level), true);
var B = new LngLatSegments(this.Corner.Lat.Code >> (32 - Level) << (32 - Level), false);
var bbox = new LngLatBbox();
if (L.G == 1)
{
bbox.East = L.Degree;
bbox.West = bbox.East - cell;
}
else
{
bbox.West = L.Degree;
bbox.East = bbox.West + cell;
}
if (B.G == 1)
{
bbox.North = B.Degree;
bbox.South = bbox.North - cell;
}
else
{
bbox.South = B.Degree;
bbox.North = bbox.South + cell;
}
return(bbox);
}
/// <summary>
/// 获取Tile的范围四至
/// </summary>
/// <returns></returns>
public LngLatBbox GetBbox()
{
var cellSize = new CellSize();
var cell = cellSize.GetCellSizeInDegree(Level);
var trtile = new Tile(this.Level, this.X + 1, this.Y + 1);
var bbox = new LngLatBbox
{
West = Math.Min(this.CornerLng, trtile.CornerLng),
South = Math.Min(this.CornerLat, trtile.CornerLat),
East = Math.Max(this.CornerLng, trtile.CornerLng),
North = Math.Max(this.CornerLat, trtile.CornerLat),
};
return(bbox);
}
